Apparatus for Acoustical Quieting of a Cavity.
Abstract
This patent application discloses a system for lowering the level of turbulence in an opening through a wall over which air is flowing at a subsonic velocity wherein an accurate flange is secured to the downstream edge of the opening and extends into the opening a distance of 0.11 to 0.22 times the length of opening in the direction air flow, the flange being tangent to the wall at the part of attachment of the branch.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 27, 1987
- Accession Number
- ADD012753
Entities
People
- Billy J. Walker
- Donald V. Rubin
Organizations
- United States Army